strace result of a busy ruby process

gistfile1.txt

% time     seconds  usecs/call     calls    errors syscall
------ ----------- ----------- --------- --------- ----------------
 26.90    0.257079           6     41582           rt_sigprocmask
 16.05    0.153354           7     20767           write
 14.84    0.141774           7     20773           getsockopt
 13.86    0.132456           6     20768           sched_yield
 13.30    0.127114          18      6885           select
  9.32    0.089066           6     13834           clock_gettime
  5.53    0.052820           8      6986        50 read
  0.09    0.000887          29        31           writev
  0.04    0.000345           8        45         9 stat
  0.02    0.000180          36         5           close
  0.02    0.000166           7        24           fcntl
  0.02    0.000145          16         9         4 accept4
  0.01    0.000138          15         9         3 futex
  0.01    0.000068          11         6           getppid
  0.00    0.000000           0         1           sendto
  0.00    0.000000           0         1           recvfrom
------ ----------- ----------- --------- --------- ----------------
100.00    0.955592                131726        66 total